Ganglion Gain?
What is the gain on a Ganglion set to?
I know the Cyton has a software set gain, but the Ganglion doesn't allow setting the gain.
Thank you!
What is the gain on a Ganglion set to?
I know the Cyton has a software set gain, but the Ganglion doesn't allow setting the gain.
Thank you!
Comments
Leevon, hi.
There is no adjustable Gain factor on Ganglion. The hardware / firmware is set up so that the measured microvolts from the electrodes is accurately reported.
https://docs.openbci.com/Ganglion/GanglionDataFormat/#interpreting-the-eeg-data
William
Got it, thank you, William. As far as I understand it, the Cyton data is also recorded in microvolts, regardless of the gain setting.
On both devices, Cyton and Ganglion, the microcontroller records the data stream, in 'device units', which are then converted by the Brainflow library (and GUI) into the default microvolts. The conversion factor is documented on the respective pages,
https://docs.openbci.com/Cyton/CytonDataFormat/#interpreting-the-eeg-data
https://docs.openbci.com/Ganglion/GanglionDataFormat/#interpreting-the-eeg-data
Awesome, thank you very much for the pointers!